xorg_crtc.c revision f656607c35c80250f0217b6c03b9312987450f13 
1/*
2 * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sub license, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial portions
15 * of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
20 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
21 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
22 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
23 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 *
25 *
26 * Author: Alan Hourihane <alanh@tungstengraphics.com>
27 * Author: Jakob Bornecrantz <wallbraker@gmail.com>
28 *
29 */
30
31#include <unistd.h>
32#include <string.h>
33#include <assert.h>
34#include <stdlib.h>
35#include <math.h>
36#include <stdint.h>
37
38#include "xorg-server.h"
39#include <xf86.h>
40#include <xf86i2c.h>
41#include <xf86Crtc.h>
42#include <cursorstr.h>
43#include "xorg_tracker.h"
44#include "xf86Modes.h"
45
46#ifdef HAVE_XEXTPROTO_71
47#include <X11/extensions/dpmsconst.h>
48#else
49#define DPMS_SERVER
50#include <X11/extensions/dpms.h>
51#endif
52
53#include "state_tracker/drm_driver.h"
54#include "util/u_inlines.h"
55#include "util/u_rect.h"
56
57#ifdef HAVE_LIBKMS
58#include "libkms/libkms.h"
59#endif
60
61struct crtc_private
62{
63    drmModeCrtcPtr drm_crtc;
64
65    /* hwcursor */
66    struct pipe_resource *cursor_tex;
67    struct kms_bo *cursor_bo;
68
69    unsigned cursor_handle;
70};
71
72static void
73crtc_dpms(xf86CrtcPtr crtc, int mode)
74{
75    /* ScrnInfoPtr pScrn = crtc->scrn; */
76
77    switch (mode) {
78    case DPMSModeOn:
79    case DPMSModeStandby:
80    case DPMSModeSuspend:
81	break;
82    case DPMSModeOff:
83	break;
84    }
85}
86
87static Bool
88crtc_set_mode_major(xf86CrtcPtr crtc, DisplayModePtr mode,
89		    Rotation rotation, int x, int y)
90{
91    xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(crtc->scrn);
92    modesettingPtr ms = modesettingPTR(crtc->scrn);
93    xf86OutputPtr output = NULL;
94    struct crtc_private *crtcp = crtc->driver_private;
95    drmModeCrtcPtr drm_crtc = crtcp->drm_crtc;
96    drmModeModeInfo drm_mode;
97    int i, ret;
98    unsigned int connector_id;
99
100    for (i = 0; i < config->num_output; output = NULL, i++) {
101	output = config->output[i];
102
103	if (output->crtc == crtc)
104	    break;
105    }
106
107    if (!output)
108	return FALSE;
109
110    connector_id = xorg_output_get_id(output);
111
112    drm_mode.clock = mode->Clock;
113    drm_mode.hdisplay = mode->HDisplay;
114    drm_mode.hsync_start = mode->HSyncStart;
115    drm_mode.hsync_end = mode->HSyncEnd;
116    drm_mode.htotal = mode->HTotal;
117    drm_mode.vdisplay = mode->VDisplay;
118    drm_mode.vsync_start = mode->VSyncStart;
119    drm_mode.vsync_end = mode->VSyncEnd;
120    drm_mode.vtotal = mode->VTotal;
121    drm_mode.flags = mode->Flags;
122    drm_mode.hskew = mode->HSkew;
123    drm_mode.vscan = mode->VScan;
124    drm_mode.vrefresh = mode->VRefresh;
125    drm_mode.type = 0;
126    if (!mode->name)
127	xf86SetModeDefaultName(mode);
128    strncpy(drm_mode.name, mode->name, DRM_DISPLAY_MODE_LEN - 1);
129    drm_mode.name[DRM_DISPLAY_MODE_LEN - 1] = '\0';
130
131    ret = drmModeSetCrtc(ms->fd, drm_crtc->crtc_id, ms->fb_id, x, y,
132			 &connector_id, 1, &drm_mode);
133
134    if (ret)
135	return FALSE;
136
137    /* Only set gamma when needed, to avoid unneeded delays. */
138#if defined(XF86_CRTC_VERSION) && XF86_CRTC_VERSION >= 3
139    if (!crtc->active && crtc->version >= 3)
140	crtc->funcs->gamma_set(crtc, crtc->gamma_red, crtc->gamma_green,
141			       crtc->gamma_blue, crtc->gamma_size);
142    crtc->active = TRUE;
143#endif
144
145    crtc->x = x;
146    crtc->y = y;
147    crtc->mode = *mode;
148    crtc->rotation = rotation;
149
150    return TRUE;
151}
152
153static void
154crtc_gamma_set(xf86CrtcPtr crtc, CARD16 * red, CARD16 * green, CARD16 * blue,
155	       int size)
156{
157    modesettingPtr ms = modesettingPTR(crtc->scrn);
158    struct crtc_private *crtcp = crtc->driver_private;
159
160    drmModeCrtcSetGamma(ms->fd, crtcp->drm_crtc->crtc_id, size, red, green, blue);
161}
162
163#if 0 /* Implement and enable to enable rotation and reflection. */
164static void *
165crtc_shadow_allocate(xf86CrtcPtr crtc, int width, int height)
166{
167    /* ScrnInfoPtr pScrn = crtc->scrn; */
168
169    return NULL;
170}
171
172static PixmapPtr
173crtc_shadow_create(xf86CrtcPtr crtc, void *data, int width, int height)
174{
175    /* ScrnInfoPtr pScrn = crtc->scrn; */
176
177    return NULL;
178}
179
180static void
181crtc_shadow_destroy(xf86CrtcPtr crtc, PixmapPtr rotate_pixmap, void *data)
182{
183    /* ScrnInfoPtr pScrn = crtc->scrn; */
184}
185
186#endif
187
188/*
189 * Cursor functions
190 */
191
192static void
193crtc_set_cursor_colors(xf86CrtcPtr crtc, int bg, int fg)
194{
195    /* XXX: See if this one is needed, as we only support ARGB cursors */
196}
197
198static void
199crtc_set_cursor_position(xf86CrtcPtr crtc, int x, int y)
200{
201    modesettingPtr ms = modesettingPTR(crtc->scrn);
202    struct crtc_private *crtcp = crtc->driver_private;
203
204    drmModeMoveCursor(ms->fd, crtcp->drm_crtc->crtc_id, x, y);
205}
206
207static void
208crtc_load_cursor_argb_ga3d(xf86CrtcPtr crtc, CARD32 * image)
209{
210    unsigned char *ptr;
211    modesettingPtr ms = modesettingPTR(crtc->scrn);
212    struct crtc_private *crtcp = crtc->driver_private;
213    struct pipe_transfer *transfer;
214    struct pipe_fence_handle *fence = NULL;
215    struct pipe_context *ctx = ms->ctx;
216    struct pipe_screen *screen = ms->screen;
217
218    if (!crtcp->cursor_tex) {
219	struct pipe_resource templat;
220	struct winsys_handle whandle;
221
222	memset(&templat, 0, sizeof(templat));
223	templat.bind |= PIPE_BIND_RENDER_TARGET;
224	templat.bind |= PIPE_BIND_SCANOUT;
225	templat.bind |= PIPE_BIND_CURSOR;
226	templat.target = PIPE_TEXTURE_2D;
227	templat.last_level = 0;
228	templat.depth0 = 1;
229	templat.array_size = 1;
230	templat.format = PIPE_FORMAT_B8G8R8A8_UNORM;
231	templat.width0 = 64;
232	templat.height0 = 64;
233
234	memset(&whandle, 0, sizeof(whandle));
235	whandle.type = DRM_API_HANDLE_TYPE_KMS;
236
237	crtcp->cursor_tex = screen->resource_create(screen, &templat);
238	screen->resource_get_handle(screen, crtcp->cursor_tex, &whandle);
239
240	crtcp->cursor_handle = whandle.handle;
241    }
242
243    transfer = pipe_get_transfer(ctx, crtcp->cursor_tex,
244                                 0, 0,
245                                 PIPE_TRANSFER_WRITE,
246                                 0, 0, 64, 64);
247    ptr = ctx->transfer_map(ctx, transfer);
248    util_copy_rect(ptr, crtcp->cursor_tex->format,
249		   transfer->stride, 0, 0,
250		   64, 64, (void*)image, 64 * 4, 0, 0);
251    ctx->transfer_unmap(ctx, transfer);
252    ctx->transfer_destroy(ctx, transfer);
253    ctx->flush(ctx, &fence);
254
255    if (fence) {
256	screen->fence_finish(screen, fence, PIPE_TIMEOUT_INFINITE);
257	screen->fence_reference(screen, &fence, NULL);
258    }
259
260    if (crtc->cursor_shown)
261	drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id,
262			 crtcp->cursor_handle, 64, 64);
263}
264
265#if HAVE_LIBKMS
266static void
267crtc_load_cursor_argb_kms(xf86CrtcPtr crtc, CARD32 * image)
268{
269    modesettingPtr ms = modesettingPTR(crtc->scrn);
270    struct crtc_private *crtcp = crtc->driver_private;
271    unsigned char *ptr;
272
273    if (!crtcp->cursor_bo) {
274	unsigned attr[8];
275
276	attr[0] = KMS_BO_TYPE;
277#ifdef KMS_BO_TYPE_CURSOR_64X64_A8R8G8B8
278	attr[1] = KMS_BO_TYPE_CURSOR_64X64_A8R8G8B8;
279#else
280	attr[1] = KMS_BO_TYPE_CURSOR;
281#endif
282	attr[2] = KMS_WIDTH;
283	attr[3] = 64;
284	attr[4] = KMS_HEIGHT;
285	attr[5] = 64;
286	attr[6] = 0;
287
288        if (kms_bo_create(ms->kms, attr, &crtcp->cursor_bo))
289	   return;
290
291	if (kms_bo_get_prop(crtcp->cursor_bo, KMS_HANDLE,
292			    &crtcp->cursor_handle))
293	    goto err_bo_destroy;
294    }
295
296    kms_bo_map(crtcp->cursor_bo, (void**)&ptr);
297    memcpy(ptr, image, 64*64*4);
298    kms_bo_unmap(crtcp->cursor_bo);
299
300    if (crtc->cursor_shown)
301	drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id,
302			 crtcp->cursor_handle, 64, 64);
303
304    return;
305
306err_bo_destroy:
307    kms_bo_destroy(&crtcp->cursor_bo);
308}
309#endif
310
311static void
312crtc_load_cursor_argb(xf86CrtcPtr crtc, CARD32 * image)
313{
314    xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(crtc->scrn);
315    modesettingPtr ms = modesettingPTR(crtc->scrn);
316
317    /* Older X servers have cursor reference counting bugs leading to use of
318     * freed memory and consequently random crashes. Should be fixed as of
319     * xserver 1.8, but this workaround shouldn't hurt anyway.
320     */
321    if (config->cursor)
322       config->cursor->refcnt++;
323
324    if (ms->cursor)
325       FreeCursor(ms->cursor, None);
326
327    ms->cursor = config->cursor;
328
329    if (ms->screen)
330	crtc_load_cursor_argb_ga3d(crtc, image);
331#ifdef HAVE_LIBKMS
332    else if (ms->kms)
333	crtc_load_cursor_argb_kms(crtc, image);
334#endif
335}
336
337static void
338crtc_show_cursor(xf86CrtcPtr crtc)
339{
340    modesettingPtr ms = modesettingPTR(crtc->scrn);
341    struct crtc_private *crtcp = crtc->driver_private;
342
343    if (crtcp->cursor_tex || crtcp->cursor_bo)
344	drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id,
345			 crtcp->cursor_handle, 64, 64);
346}
347
348static void
349crtc_hide_cursor(xf86CrtcPtr crtc)
350{
351    modesettingPtr ms = modesettingPTR(crtc->scrn);
352    struct crtc_private *crtcp = crtc->driver_private;
353
354    drmModeSetCursor(ms->fd, crtcp->drm_crtc->crtc_id, 0, 0, 0);
355}
356
357/**
358 * Called at vt leave
359 */
360void
361xorg_crtc_cursor_destroy(xf86CrtcPtr crtc)
362{
363    struct crtc_private *crtcp = crtc->driver_private;
364
365    if (crtcp->cursor_tex)
366	pipe_resource_reference(&crtcp->cursor_tex, NULL);
367#ifdef HAVE_LIBKMS
368    if (crtcp->cursor_bo)
369	kms_bo_destroy(&crtcp->cursor_bo);
370#endif
371}
372
373/*
374 * Misc functions
375 */
376
377static void
378crtc_destroy(xf86CrtcPtr crtc)
379{
380    struct crtc_private *crtcp = crtc->driver_private;
381
382    xorg_crtc_cursor_destroy(crtc);
383
384    drmModeFreeCrtc(crtcp->drm_crtc);
385
386    free(crtcp);
387    crtc->driver_private = NULL;
388}
389
390static const xf86CrtcFuncsRec crtc_funcs = {
391    .dpms = crtc_dpms,
392    .set_mode_major = crtc_set_mode_major,
393
394    .set_cursor_colors = crtc_set_cursor_colors,
395    .set_cursor_position = crtc_set_cursor_position,
396    .show_cursor = crtc_show_cursor,
397    .hide_cursor = crtc_hide_cursor,
398    .load_cursor_argb = crtc_load_cursor_argb,
399
400    .shadow_create = NULL,
401    .shadow_allocate = NULL,
402    .shadow_destroy = NULL,
403
404    .gamma_set = crtc_gamma_set,
405    .destroy = crtc_destroy,
406};
407
408void
409xorg_crtc_init(ScrnInfoPtr pScrn)
410{
411    modesettingPtr ms = modesettingPTR(pScrn);
412    xf86CrtcPtr crtc;
413    drmModeResPtr res;
414    drmModeCrtcPtr drm_crtc = NULL;
415    struct crtc_private *crtcp;
416    int c;
417
418    res = drmModeGetResources(ms->fd);
419    if (res == 0) {
420	ErrorF("Failed drmModeGetResources %d\n", errno);
421	return;
422    }
423
424    for (c = 0; c < res->count_crtcs; c++) {
425	drm_crtc = drmModeGetCrtc(ms->fd, res->crtcs[c]);
426
427	if (!drm_crtc)
428	    continue;
429
430	crtc = xf86CrtcCreate(pScrn, &crtc_funcs);
431	if (crtc == NULL)
432	    goto out;
433
434	crtcp = calloc(1, sizeof(struct crtc_private));
435	if (!crtcp) {
436	    xf86CrtcDestroy(crtc);
437	    goto out;
438	}
439
440	crtcp->drm_crtc = drm_crtc;
441
442	crtc->driver_private = crtcp;
443    }
444
445  out:
446    drmModeFreeResources(res);
447}
448
449/* vim: set sw=4 ts=8 sts=4: */
450